public async Task <string> walletImportIpfs(string identifier,
string jsonConfig)
{
WalletBackupModel model =
WalletBackupModel.importFromJson(jsonConfig);
IpfsFacilitator ipfs = new IpfsFacilitator();
string localPath = IOFacilitator.homePath() + "temp";
try
{
// get file content
string txt = await ipfs.getFile(model.ipfs_path, identifier);
// create local file from ipfs content
IOFacilitator.createFile(txt, "temp.txt");
// convert txt to binary
IOFacilitator.convertTextToByteFile("temp.txt", "temp");
// import wallet into client
string res = await walletImportLocal(identifier, localPath, model.wallet_key,
model.export_key);
return(res);
}
catch (Exception e)
{
return($"Error: {e.Message}");
}
}
public async Task <string> walletExportIpfs(
string exportKey, string walletKey = "")
{
string path = IOFacilitator.homePath() + d_identifier + "WBtemp";
try
{
// create export file
await walletExportLocal(path, exportKey);
// convert export file from byte file to txt file
string textFilePath = IOFacilitator.convertByteToTextFile(
d_identifier + "WBtemp");
// upload text file to ipfs
IpfsFacilitator ipfs = new IpfsFacilitator();
string ipfsPath = await ipfs.addFile(textFilePath);
WalletBackupModel model = new WalletBackupModel(
ipfsPath,
d_identifier,
(walletKey == "" ? d_identifier : walletKey),
exportKey);
model.exportToJsonFile();
return(JsonConvert.SerializeObject(model));
}
catch (Exception e)
{
return($"Error: {e.Message}");
}
}
public async Task <string> downloadEmergencyEHR()
{
IpfsFacilitator ipfs = new IpfsFacilitator();
string encryptedEHR = await ipfs.getFile(ipfs_path, "");
// decrypt ehr data
CipherFacilitator cipher = new CipherFacilitator();
cipher.setKey(encryption_key);
cipher.setIV(encryption_iv);
return(cipher.decrypt(encryptedEHR));
}
static public async Task <string> backupEHR(string walletId, string ehrJson)
{
// encrypt ehr data
CipherFacilitator cipher = new CipherFacilitator();
string encryptedEHR = cipher.encrypt(ehrJson);
string relPath = walletId + "ESjson.temp";
IOFacilitator.createFile(encryptedEHR, relPath);
IpfsFacilitator ipfs = new IpfsFacilitator();
string localPath = IOFacilitator.homePath() + relPath;
string ipfsPath = await ipfs.addFile(localPath);
ShellFacilitator.Bash("rm -f " + localPath);
EHRBackupModel model = new EHRBackupModel(ipfsPath,
cipher.getKey(), cipher.getIV());
model.exportToJsonFile(walletId);
return(model.toJson());
}